Home Assistant Frigate Notifications Stopped Working
This post explains the possible causes why Frigate notifications do not appear anymore.
Flo
Problem: Mosquitto Broker stopped working
The notifications of the Frigate integration did not show up and all sensors of the cameras in the integration were unavailable. The Frigate app (add-on) still worked well and the detection aswell.
Solution: Check if your Mosquitto Broker app is running. Mine was stopped which caused the Frigate integration not being able to connect to the Frigate app (add-on).